Improvement in kaleidoscopic lanterns



F. HARTMANN Kaleidoscopic Lanterns. l N0.l55,085 Patented Sept.15,1874.

Aff/wz.

UNITED STATES FREDERICK HARTMANN,

PATENT OFFICE.

OF CHICAGO, ILLINOIS.

IMPROVEMENT lN KALEIDOSCOPIC LANTERNS.

Specification forming part of Letters PatentNo. 155,085, dated September15, 1874; application led July 20, 1874.

To ttl 'whom t't may concern:

Beit known that I, FREDERICK HARTMANN, of' Chicago, in the county ofCook and State of Illinois, have invented a new and useful KaleidoscopicLantern, of which the following is a specification:

The object of my invention is to provide a kaleidoscopic lantern forstore-Windows, which, from the brilliancy of'the colors reiiected in themirror Which forms the background, will attact the attention ofpassers-by 5 and it consists in the combination, With a reflector havingits reflecting-surface lined with mirrorfacets, of a lamp -and reectorsupported in the focus of the large reflector, With a cone or acylinder, or a combination thereof, of' particolored glass, eitherstationary or rotating, through which the light is transmitted to thereiiector, as more fully hereinafter set forth.

Figure l is a perspective View. Fig. 2 is a longitudinal verticalsection.

In the drawing, A represents a sheet-metal reflector, having a hook, A2,at the back to secure it to any suitable support in a shoW- window in avertical position, as shown. The inner surface is set With radialmirror-facets A1, secured by sheet-metal clips a turned over their ends.These facets are disposedin three or more concentric circles, and atvaryin g an gies of inclination. B is a rod projecting horizontally fromthe face of the reliector A below the focal plane, and on it is sleeveda support, B', for a lamp, C, in the focus of' the reiiector A. At theouter end of said sleevesupport is a small reiicctor, D, Which reflectsthe light of' the lamp into the large reflector A. To the smallerreiiector is secured one end of a conical casing, E, for the lamp, bothbeing made of polished sheet metal.

A circular kaleidoscope is made of glass staves of various colors. Thecentral portion F is cylindrical, While the outer end Fl is iiaring, andthe inner section F2 conical. The kaleidoscope is supported by twoyokes, b b, rising from the support B1, and which partially embrace thehoops 0 0 ofthe central section.

The colored lights transmitted through the kaleidoscope into thereiiector Al are reflected by its facets in a thousand different formsas the observer passes by, While, if the kaleidoscope be axially rotatedby clock-work, or otherwise, the effect is indescribably beautiful, andcannot fail to attract attention.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. The combination, With the reiiector A Al, constructed substantiallyas described, of the lamp C in the focus thereof, the small reflector D,casing E, and kaleidoscope F Fl F2, either stationary or axiallyrotatingin the focal plane, substantially as described.

2. In combination, the rod B, projecting horizontally from the reflectorA, with the sleeve B1, the lamp C, reflector D, and a kaleidoscope, F FlF2, in the focal plane of the reflector A, substantially as describedand shown.

FREDERICK HARTMANN.

Witnesses:

WM. H. Lo'rz, A. GOTTLIEB, Jr.

